Warnings have been issued to internet users who have downloaded an operating system purportedly created by members of the Anonymous hacker group.
Anonymous-OS 0.1, which comes with a number of hacking tools, has been downloaded by tens of thousands of people but security experts have warned the software could be riddled with viruses.

The 'official' Anonymous group has distanced itself from the software and claimed on Twitter it is 'wrapped in trojans'.

The creators of the operating system, which is based on a version of the open-source operating system Linux, have denied the presence of viruses and said it was created for 'checking the security of web pages'.